package com.zyjblogs.lock;

/**
 * 测试 ：生成者消费者模型->利用缓冲区解决：管程法
 */
public class TestPC2 {
    public static void main(String[] args) {
        Tv tv = new Tv();
        new Player(tv).start();
        new Watcher(tv).start();
    }
}
//生产者-->演员
class Player extends Thread{
    Tv tv = new Tv();
    public Player(Tv tv) {
        this.tv =tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            if (i%2 ==0) {
                this.tv.play("快乐大本营");
            }else {
                this.tv.play("抖音：记录美好生活");
            }
        }
    }
}


//消费者-->观众
class Watcher extends Thread{
    Tv tv = new Tv();
    public Watcher(Tv tv) {
        this.tv =tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            tv.watch();
        }
    }
}

//产品-->节目
class Tv{
    //演员表演，观众等待
    //观众观看，演员等待
    //表演节目
    String voice;
    boolean flag = true;

    //表演
    public synchronized void play(String voice) {
        if (!flag) {
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        //表演
        System.out.println("演员表演了："+voice);
        //通知观众观看
        this.notifyAll();
        this.voice = voice;
        this.flag = !this.flag;
    }

    public synchronized void watch(){
        if (flag) {
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("观看了："+voice);
        //通知演员表演
        this.notifyAll();
        this.flag = !this.flag;
    }
}